Sun leave ballast issues not working his bulbs

My ballast runs mh bulbs but not hos anymore any ideas? I've bought new bulbs just to make sure

SpOrK989 said:

My ballast runs mh bulbs but not hos anymore any ideas? I've bought new bulbs just to make sure

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conversion bulbs or can ur ballest run both does it have a setting ? if its just a mh bulb that goes into a hps ballest they fuck ur ballests hard we stoped stocking them about 2 years ago

SpOrK989 said:

My ballast runs mh bulbs but not hos anymore any ideas? I've bought new bulbs just to make sure

Click to expand...

Replace the ignitor in the ballast.

Yep, it's a defective ignitor.